Replace a single rear brake rotor on a 2024 Tesla Model Y Long Range AWD. The rear caliper uses an integrated electronic parking brake (EPB) actuator that must be placed in service mode via the touchscreen before caliper removal.

Warnings

Tools required

Parts

• Rear brake rotor (single) × 1 — OEM-equivalent rear rotor for 2024 Model Y Long Range AWD
• Rotor set screw (if damaged on removal) × 1 — Manufacturer-specified rotor retaining screw

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with the key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 12V low-voltage battery. On 2024 Model Y, the 12V (Li-ion) battery is accessible from the front trunk area — refer to Tesla service documentation for exact access.
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. BEFORE disconnecting 12V: On the touchscreen, navigate to Service Mode (or Controls > Service > Brakes) and activate 'Brake Service Mode' / 'Pad Replacement Mode' to retract the EPB and disable parking brake auto-apply.
7. Loosen the rear lug nuts a quarter-turn while the wheel is still on the ground.
8. Raise the rear of the vehicle at the manufacturer-specified jack points using proper Tesla pucks, and support on jack stands. Never work under a vehicle supported only by a jack.
9. Remove the rear wheel on the side being serviced.

Procedure

1. 1

   Inspect and document
   Inspect the rear caliper, rotor, pads, hub, and dust shield. Note rotor thickness and any scoring. Confirm EPB is fully retracted (no resistance when sliding pads). If pads still seem clamped, return to the touchscreen and re-verify Brake Service Mode is active before proceeding.
   ⚠If the EPB motor is still engaged, do NOT force the caliper open. Doing so will destroy the EPB actuator gear set.
2. 2

   Remove caliper slide pin bolts
   Remove the two caliper slide pin bolts that secure the caliper body to the caliper bracket. Support the caliper as the second bolt comes free.
   Torque spec

   Caliper Slide Pin Bolts35 Nm (26 lb-ft)
3. 3

   Suspend the caliper
   Lift the caliper off the rotor and suspend it from the suspension or subframe with a caliper hanger or bungee. Do NOT let it hang from the flexible brake hose or the EPB wiring harness.
   ⚠Do not stress the EPB electrical connector or harness — replacement requires programming.
4. 4

   Remove brake pads (if reusing)
   Slide the inner and outer pads out of the caliper bracket. Note their orientation (wear sensor side, if applicable) so they can be reinstalled correctly.
5. 5

   Remove caliper bracket
   Remove the two caliper bracket bolts that secure the bracket to the rear knuckle. These are typically high torque and may require a breaker bar. Set the bracket aside on a clean surface.
   Torque spec

   Bracket Bolts102 Nm (75 lb-ft)
6. 6

   Remove rotor set screw
   Remove the small set screw (Torx, typically T30) holding the rotor to the hub. If seized, apply penetrating oil and use a properly fitting bit to avoid stripping. Replace the screw if damaged.
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
7. 7

   Remove rotor
   Pull the rotor straight off the hub. If seized due to corrosion at the hub pilot, lightly tap the rotor face with a dead-blow mallet, or thread bolts into the rotor's threaded service holes (if equipped) to push it off.
   ⚠Do not strike the hub, dust shield, or wheel speed sensor. The rear ABS/wheel speed sensor is integrated near the hub bearing and is fragile.
8. 8

   Clean hub face
   Wire-brush the hub mounting face to remove rust and corrosion until it is clean and flat. A clean hub is critical to prevent runout-induced brake pulsation. Optionally apply a very thin film of anti-seize to the hub center pilot only — never on the rotor friction surface.
9. 9

   Install new rotor
   Remove protective coating from the new rotor with brake parts cleaner. Mount the rotor onto the hub and secure with the set screw.
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
10. 10

    Reinstall caliper bracket
    Apply medium-strength threadlocker to the caliper bracket bolts and reinstall the bracket onto the knuckle. Torque to specification.
    Torque spec

    Bracket Bolts102 Nm (75 lb-ft)
11. 11

    Reinstall pads and caliper
    Inspect and lubricate the caliper slide pins with silicone brake grease; replace pin boots if torn. Reinstall pads into the bracket. With the EPB still in service mode and the piston fully retracted, slide the caliper over the pads and reinstall the slide pin bolts.
    ⚠Confirm the piston face is squared with the inner pad backing plate. Forcing a misaligned caliper can damage the piston seal.
    Torque spec

    Caliper Slide Pin Bolts35 Nm (26 lb-ft)
12. 12

    Reinstall wheel
    Mount the wheel and hand-thread all lug nuts. Lower the vehicle until the tire just contacts the ground, then torque the lug nuts in a star pattern.
    Torque spec

    Wheel Lug Nuts140 Nm (103 lb-ft)

Reassembly

1. Reconnect the 12V low-voltage battery.
2. Close all doors, then enter the vehicle with the key fob and power the system on.
3. On the touchscreen, exit Brake Service Mode. The system will cycle the EPB actuator — listen for the motor to run and confirm no fault messages appear.
4. With the vehicle still stationary, press the brake pedal firmly several times until it feels solid. The first 1-2 presses will be soft as the caliper piston takes up clearance against the new rotor.
5. Apply and release the parking brake 2-3 times via the touchscreen/stalk and confirm normal operation with no warning messages.

Verification

• Confirm no ABS, EPB, or brake warning indicators are present on the instrument cluster/touchscreen.
• Perform a low-speed (5-10 mph) brake test in a safe area, checking for pull, pulsation, or unusual noise.
• Bed in the new rotor: perform a series of moderate stops from approximately 35 mph down to 5 mph (typically 6-10 cycles) without coming to a complete stop, then allow the brakes to cool. Follow the rotor manufacturer's bed-in procedure if provided.
• After a short test drive, re-check rear lug nut torque and inspect for fluid leaks at the caliper.
• Note service date/mileage. Reminder: Tesla recommends brake fluid replacement every 2 years regardless of mileage — verify when the brake fluid was last serviced.
• Reminder: Tesla recommends tire rotation every ~6,250 miles on Model Y due to high wear from instant torque and curb weight.

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